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EN 1.4031 Stainless Steel vs. N08926 Stainless Steel

Both EN 1.4031 stainless steel and N08926 stainless steel are iron alloys. They have 60% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4031 stainless steel and the bottom bar is N08926 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 13
40
Fatigue Strength, MPa 220 to 400
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Shear Strength, MPa 400 to 540
500
Tensile Strength: Ultimate (UTS), MPa 670 to 900
740
Tensile Strength: Yield (Proof), MPa 390 to 730
330

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 770
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 30
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
33
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 1.9
6.2
Embodied Energy, MJ/kg 27
84
Embodied Water, L/kg 100
200

Common Calculations

PREN (Pitting Resistance) 14
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
240
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1360
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 32
25
Strength to Weight: Bending, points 22 to 27
22
Thermal Diffusivity, mm2/s 8.1
3.2
Thermal Shock Resistance, points 23 to 32
16

Alloy Composition

Carbon (C), % 0.36 to 0.42
0 to 0.020
Chromium (Cr), % 12.5 to 14.5
19 to 21
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 83 to 87.1
41.7 to 50.4
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0
24 to 26
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010